Begin to make use of CLI from LXC::Container

lib/vagrant-lxc/container.rb

@@ -1,11 +1,12 @@
 # FIXME: Ruby 1.8 users dont have SecureRandom
 require 'securerandom'
 
+require "vagrant-lxc/errors"
+require "vagrant-lxc/container/cli"
+
 require "vagrant/util/retryable"
 require "vagrant/util/subprocess"
 
-require "vagrant-lxc/errors"
-
 module Vagrant
   module LXC
     class Container
@@ -21,13 +22,14 @@ module Vagrant
 
       attr_reader :name
 
-      def initialize(name)
+      def initialize(name, cli = CLI.new(name))
         @name   = name
+        @cli    = cli
         @logger = Log4r::Logger.new("vagrant::provider::lxc::container")
       end
 
       def validate!
-        raise NotFound if @name && ! lxc(:ls).split("\n").include?(@name)
+        raise NotFound if @name && ! @cli.list.include?(@name)
       end
 
       def base_path

spec/unit/container_spec.rb

@@ -8,14 +8,10 @@ describe Vagrant::LXC::Container do
   subject { described_class.new(name) }
 
   describe 'container name validation' do
-    let(:unknown_container) { described_class.new('unknown') }
+    let(:unknown_container) { described_class.new('unknown', cli) }
-    let(:valid_container)   { described_class.new('valid') }
+    let(:valid_container)   { described_class.new('valid', cli) }
     let(:new_container)     { described_class.new(nil) }
-
+    let(:cli)               { fire_double('Vagrant::LXC::CLI', list: ['valid']) }
-    before do
-      unknown_container.stub(lxc: 'valid')
-      valid_container.stub(lxc: 'valid')
-    end
 
     it 'raises a NotFound error if an unknown container name gets provided' do
       expect {